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  • Need solution for RD Sharma Maths Class 12 Chapter 30 Probability Exercise 30.3 question 25.

Need solution for RD Sharma Maths Class 12 Chapter 30 Probability Exercise 30.3 question 25.

Answers (1)

Answer: \frac{1}{10}

Hint:P\left(\frac{S}{G}\right)=\frac{P(S \cap G)}{P(G)}

Given, S= Student chosen randomly studies in class XII

            G= Female student chosen randomly

 \begin{aligned} &P(G)=\frac{430}{1000} \\ &P(S \cap G)=\frac{43}{1000} \\ &P\left(\frac{S}{G}\right)=\frac{P(S \cap G)}{P(G)} \end{aligned}

                    \begin{aligned} =\frac{ \frac{430}{1000}}{ \frac{430}{1000}} \\ = \frac{1}{10} \end{aligned}

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